Fox 2000 has brought on Randi Mayem Singer (Mrs. Doubtfire) to write the screenplay for Alvin and the Chipmunks 4, which has already been set for release on December 16, 2016.

No plot details have been released at this stage, and it isn't known if any of the cast members from 2007's Alvin and the Chipmunks, 2009's Alvin and The Chipmunks: The Squeakuel or 2011's Alvin and the Chipmunks: Chip-Wrecked will return for this follow-up. Justin Long, Matthew Gray Gubler and Jesse McCartney voiced the Chipmunks in all three movies, with Amy Poehler, Anna Faris and Christina Applegate voicing the Chippettes in Alvin and The Chipmunks: The Squeakuel and Alvin and the Chipmunks: Chip-Wrecked.

The first three movies have earned over $560 at the domestic box office, and more than $1.1 billion worldwide combined, even though Alvin and the Chipmunks: Chip-Wrecked earned $100 million less than its predecessors during its theatrical run.

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Randi Mayem Singer's other writing credits include Tooth Fairy, Wish List, along with writing for TV shows such as Jack & Jill and Real Life.